This list of travel ideas will help you book the getaway you’ve been craving. As winter approaches, Pittsburgh invites travellers to enjoy its cultural institutions and explore more than 30 museums, ...
La mitad del planeta queda iluminado por el Sol (día) y la otra mitad queda a oscuras (noche). Traslación: la Tierra gira alrededor del Sol, atraída por la gravedad del mismo, y describe una ...
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